IBM Storwize V7000 Unified Manual page 118

remaining node canisters Fibre Channel ports 3 and 4 (or 3 - 8 if the second Fibre
Channel interface card is fitted in PCI slot 3).
Connect the 4 file module power cords
About this task
Control enclosure:
Two power supply units are located in each enclosure. Ensure that the power
switches for the control enclosure and expansion enclosures power supply unit are
switched off.
Note: Each power supply unit comes with an attached cable retention bracket that
fastens around the power cord to prevent the cord from being removed
accidentally.
Perform the following steps when you attach the power cord to each power supply
unit:
1. Straighten the cable tie on the cable retention bracket. The cable retention
2. Open the cable retention bracket.
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IBM Storwize V7000 Unified: Adding Storwize V7000 File Modules to an existing Storwize V7000 system 2073-720
bracket is attached to the power supply unit.